Two couples are on a boating trip when they come across an uncharted island. The four investigate and find themselves in the clutches of Dr. Albert Balleau, whose hobby is hunting both animals and humans… The group tries to escape only to be thwarted by Dr. Balleau and his henchmen.
Teenagers from a small town and their high school science teacher join forces to battle a giant mutant spider, living in a cave nearby and getting hungry.
The Hellcats are an all-female gang bent on bucking authority and terrorizing the schools by doing things like having a bad attitude toward their teachers and parents. When Joyce, a new student, moves into the neighborhood, she draws the attention of The Hellcats. Desperate for acceptance and unhappy with her homelife, Joyce goes along with the gang, and is soon drinking, dancing and meeting boys. Can her parents stop her descent into depravity?